Spring implement seat



May 27, 1930. F. A. DONALDS ON SPRINGlMiLEMENT SEAT Filed July 16, 1928 I rearwardtipping movements, Injtheir norf rming I pr esentin'vention relates to spring seats Y j'for'u'se on implements such *astraetors, farm machinery,froadfmachlneryandtheehke, and

, has for its main object to provide .a highly "5 eflicient and extremelysimple s'eatio'i the f v character describedf Generally stated, the'in- I 'venti'on' consists ofthe novel devices and com 7 "binations ofdevicesarhereinafter described f: and definedinthe'claim's. a V

In the accom anying'fl drawingsg which 1 illustrate the inventiom'like characters indicate likevparts throughout the several'views- Referring to the drawings Fig. 1 is a plan vieW-ofathe'seat; I

4 Fig; 3 is a section takenfonthe line' 3 3 of Fig-2.x

pfi'lThe-nume'ral standard comf mercial type of implmentlseatthat is con v nectedto a relatively stationary jiirame @b i p f forward sidesprings 6,'rearward slde'sprlngs 7,' and a downwardly pulling "front spring 8.

a As'illustrated, and in" its preferredform, the Y frameif5 includes axlower portion 9 that un- 2 jderli'es the" seat 4; upwardly extended: side portions 10, and inwardly turnedupper edges 11', to which side springs 6 and 7 are attached.

; The forward-andsrearward side springs 6 and 7' support the seat, anda-downwardly pulling front spring 8 holds the same agalnst a mal positions, thefrearward'si'de springsjTare horizontally disposed and. the forward,

5 springs 6'. are inwardly inclinedufrom their points of attachment Withthe names; It is also'imp'ortant to noteth'atithe side springs6 l I and 7 converge outwardlyfromtheir points i ofattachmentwiththe seat l- -f U v Withthe above a'rrangement ofsprings, the

seat proper 4 "Wil1 bereadily depressed by the Weight of the occupant-when a bump is" 1 A encountered, but willbej returnedto a normal; operative gpositionf-relatively, "slowly and Without tendency to throw the' occupant up- Ward therefrom, When;the maehin-e encoun V f 'ters asuccesslonof ruts,'ifurrowsor-thehke, the seat W111 he'free for'vertical movements,"

. but the arrangementof springswill hold said ,seat fagainst annoying is ayingand -tipping s o ovement if iApplieation n1djii 1y 16, i92 "seri l m -292,94 Q

'Fig. 2 is a'front View of'the seat; and;

Thes'eat frame may hekrnou'nted suitable'manner, but as 'shownfltis connected f toth'e upperportion-offa]seat-mounting.bar; 1' 12, of the usual type, by-anut-equipped bolt? '13 that is passedthroughfone ofseveral holes t6 14- in' the frame land,anzalign'ed hole in'the I ba 1f-12.' Forward'andrearward adjustments of the seat may be readily' 'obtainedby align ing any one of the several bolt holes 14: in the lower-portion of hole'inthebar12; j r

* These at l-is providedwithaback rest -or 7 4 support secured tothe upper pon- .tlon ofa curved-"back memberlii that'is c f;

ried by the seat 4 for common movements v 'ftherewithi The lback'member 16 is'rigidly' but adjustably connectedtothefseat fl for f ojr- QW ardand rearwardmovements iIi" re spec t; .i f thereto'by means ofanut-equippedbo'lt 17-; I r i that is'insertable'through' any One-Of's'eVeraLJO 1 f 1' l' holes 18in the back'membe'r 16, andj'the hack r i aster support '15 is adjustably secured to the V backjmember 16 for vertical movements there- 1 ,onj by 'a'bo1t'19 that is ,insertablethrough any I p one of several holes 20 in the'upper'portion of 7. p p the'back memherl lti.

WhatIeIaimi i f 1' v1; I i-combination Withan implement seat,

"axframe'ineluding a portion underlying 'the f' seat and f upwardly extended sidefpo'rtion'sso "spaced from the sides of saidrseat, upwardly and outwardly pulling tension springs be-; ftW een-ftheforward side portions of p the seat 1 I V d Side portions-of the frame, tension isprings between the rearward side portions fifi "of the seatandthe side portions of said"? frame, and'la downwardly pulling interrnedif ate tension spring attachedto' said seat near 7 e.

"the front thereof and toajrelatively' stands; I

a'ry member belowthe plane of said seat. 90

' r2. 'Incombination w th .an implementf'seat, e V V s and-a frame including. a portion underlying theseat and upwardly extended side portions spaced from the sides of the seat, of upwardy i Y ly and outwardly pulling tension springs be tween the forward sideportions of saidsea andthe side portions of'the frame,=tension springs between the rearwardsi'de portions of saidseat andthe sides of said frame, and v ir a centrally located downwardly pulling tene (.1 1 1 the-frame 4 with "the bolt' 60* i 

